*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
header{
    margin-top:35px;
}
.banner{
    margin-top: 45px;
    margin-bottom:80px;
}
.banner input{
    width: 23%;
    height:32px;
    margin-right:25px;
    padding-right:5px;
    padding-left:5px;
}
.banner button{
    width: 190px;
}
#s{
    width:23%;
    height: 32px;
    margin-right:20px;
}
#btn{
   width: 23%;
    height: 32px;
    border-radius: 6px;
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}
main{
    overflow: hidden;
}
main h6{
    font-size: 18px;
    padding-top:3px;
    padding-bottom:3px;
    margin-bottom:0;
    float: left;
    border-top: 1px solid #b3b3b3bd;
    border-bottom:1px solid #b3b3b3bd;
    width:33%;
}
main ul{
    margin-top:35px;
}
main ul li{
    list-style: none;
    padding-top: 5px;
    padding-bottom: 5px;
    border-bottom: 1px solid #b3b3b3bd;
}
main ul li span{
    width: 33.3333%;
    display: inline-block;
}


@media (max-width: 600px) {
    .banner input{
        width: 100%;
        margin-right:0;
    }
    #s{
        width: 100%;
        margin-top:10px;
        margin-bottom:10px;
        margin-right: 0;
    }
    #btn{
        width: 100%;
        margin-right:0;
    }
    #a{
        margin-top:10px;
        margin-bottom:10px;
    }
}

